i started a thread a few months ago about using certain films in certain cameras for this very reason. I noticed that most of my modern film cameras, F5, N80 and N90 performed best with slide film and worst with B&W. but my FA and FE2 gave their best images with B&W. so it could be that Nikon calibrated (would that be the proper term to use) their meters or the camera to work best with the popular film of the time. I absolutely think that the color meter in the F5 gives amazing results with slides, better than any of my non color metered cameras.